delete manualmode's jbossas-messaging-failover before copy

HornetQ failover is depending on the file system to lock a file.
I have seen PRs be aborted because HornetQ live server can not lock this
file to start (there is no timeout on this lock operation).
Deleting the directory ensures that the file system's lock (from previous
runs) is removed.
WFLY-1344 (fix by jaikiran adjusted to be compatible with other changes)
WFLY-1333: Fix default access log prefix value
Fix default value for access-log/prefix in subsystem tests.
Revert fix, but add a comment.
Use ModelFixer in subsystem test to deal with wrong legacy default
Refix tests.
First web 8 build.
Revert "WFLY-471 Disabling JAX-RS related tests failing due to upgrade to HV 5" due to JAX-RS breakage

This reverts commit 4939e565709ede104a76b86ff9ce38e53e4cb58f.
Revert "WFLY-471 Updating to HV 5.0.1.Final" due to JAX-RS breakage

This reverts commit e5135df9833d6dc0391c21cfdb4910233688b950.
Fixes for latest Undertow
Fix some issues with servlet role mapping and run-as
Undertow 1.0.0.Alpha14
Remove underscore from UndertowHttpManagementService and remove undertow from the service name.
[WFLY-1336] Add redirect for the web console to undertow.
Minor cleanup
Prevent spurious creation of permission objects in many cases when security manager checking is disabled
Add privileged utility methods for the most common privileged actions which avoids the need to use expensive doPrivileged and checkPermission calls
Move to the privileged methods on WildFlySecurityManager
WFLY-1347: Update to console 1.6.0.Final